webassign.net 7. [-11 Points] ROLFFMS 6.3.025. MY NOTES ASKYOUR TEACHER PRACTICE ANOTHER A telephone number consists of 7 digits. How many phone numbers are possible if the first digit is neither 1 nor 0? C] phone numbers Need Help? _ Additional Materials E] eBook 8. [-11 Points] ROLFFMB 6.3.030. ASK VOUR TEACHER PRACTICE ANOTHER Will an identification code of one letter followed by 2 digits provide for 8000 parking permits? 0 Yes 0 No Additional Materials II] eBook 9. [-11 Points] ROLFFMS 6.3.036. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Hank has a special date. He wants to wear a tie but does not own one, so he plans to borrow one from a roommate. Sylvester has 12 ties, Leroy has 3 ties, and T. Bob has 2 ties. Assuming there are no duplicates, how many choices of a tie does Hank have? C choices Additional Materials III eBook 10. [-11 Points] ASK YOUR TEACHER PRACTICE ANOTHER Five couples attend a play and are seated in a row of 10 chairs. How many different arrangements are possible if couples are seated together? (See Example 8.) S arrangements Need Help? Additional Materials ROLFFMB 6.3.051. III eBook 11. [11 Points] MYNOTES lASKYOURTEACHERI PRACTICEANOTHER In how many different arrangements can 3 men and 2 women be seated in a row if no one sits next to a member of the same gender? [j arrangements Additional Material: ROLFFMS 6.3.053. El eBook 12. [-13 Points] ASK YOUR TEACHER PRACTICE ANOTHER Jones starts a chain letter by sending letters to 10 people the first week. The second week, each person who received a letter sends 10 letters to other people. This continues each week. Assume that no one receives two letters. R0 LFFMB 6.3.056. (a) How many people receive letters the second week? (b) How many people receive letters the third week? people (C) How many people receive letters the fourth week? people